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gh-100098: [Enum] insist on actual tuples, no subclasses, for auto (GH-100099)

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When checking for auto() instances, only top-level usage is supported,
which means either alone or as part of a regular tuple. Other
containers, such as lists, dicts, or namedtuples, will not have auto()
transformed into a value.
(cherry picked from commit ded02ca54d)

Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
This commit is contained in:
Miss Islington (bot) 2022-12-07 23:21:29 -08:00 • committed by GitHub
parent 846898e5ab
commit d4426c8295
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3 changed files with 17 additions and 1 deletions
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13
Lib/test/test_enum.py
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@ -2727,6 +2727,19 @@ class TestSpecial(unittest.TestCase):
self.assertEqual(deep, flags)
self.assertEqual(copied.value, 1 | 2 | 8)
def test_namedtuple_as_value(self):
from collections import namedtuple
TTuple = namedtuple('TTuple', 'id a blist')
class NTEnum(Enum):
NONE = TTuple(0, 0, [])
A = TTuple(1, 2, [4])
B = TTuple(2, 4, [0, 1, 2])
self.assertEqual(repr(NTEnum.NONE), "<NTEnum.NONE: TTuple(id=0, a=0, blist=[])>")
self.assertEqual(NTEnum.NONE.value, TTuple(id=0, a=0, blist=[]))
self.assertEqual(
[x.value for x in NTEnum],
[TTuple(id=0, a=0, blist=[]), TTuple(id=1, a=2, blist=[4]), TTuple(id=2, a=4, blist=[0, 1, 2])],
)
class TestOrder(unittest.TestCase):
"test usage of the `_order_` attribute"